A Jersey City woman has agreed to cooperate in the prosecution of a man charged in five murders as part of a deal in which she pleaded guilty to four counts of armed robbery and faces up to 40 years in prison.

She said she committed the robbery with Shiquan Bellamy, and his cousin, Latonia Bellamy, both 21, and said the Bellamys killed the couple using a shotgun and handgun. She admitted sharing in the proceeds and said Shiquan Bellamy called his shotgun, "Shotty."

Lawrence also admitted to participating in the robbery of Lester Thompson, 26, and Thompson's cousin, Mileak Richardson, 17, who were found face down on the sidewalk on Woodlawn Avenue at around 4 a.m. on Feb. 2, 2010.

Lawrence admitted asking Richardson to deliver marijuana to her and said when Thompson and Richardson arrived, Shiquan Bellamy and two other men robbed the pair and killed them with a shotgun and handguns. She said she received marijuana as her cut of the proceeds.

Shiquan Bellamy is charged with the murder of Haqq, Muchioki, Thompson and Richardson, as well as the March 27, 2010, murder of Lamont Wright. Wright was shot in the back with a shotgun while walking his girlfriend to her car at about 6 a.m. on Clerk Street, officials said.

"It is my fervent hope that we will try Shiquan Bellamy before the end of the year," said Hudson County Assistant Prosecutor Michael D'Andrea.

On June 21, a jury deliberated for less than a day before convicting Latonia Bellamy in the murder of Haqq, the felony murder of Haqq and Muchioki , carjacking, robbery, and four weapons offenses related to a 9mm handgun. She will likely face 60 years to life when sentenced on Sept. 21 by Superior Court Judge Paul DePascale.

Lawrence had been charged with murder and could have faced life in prison if convicted on the charges. She now faces 20 to 40 years in prison and the severity of the sentence will likely be contingent on who well she abides by her agreement to testify against Shiquan Bellamy, officials said, adding that she has knowledge of all five murders.

One of Lawrence's relatives who attended the plea hearing chose not to comment.